CN207396415U - A kind of VOC harvesters and VOC analytical equipments - Google Patents
A kind of VOC harvesters and VOC analytical equipments Download PDFInfo
- Publication number
- CN207396415U CN207396415U CN201720997716.2U CN201720997716U CN207396415U CN 207396415 U CN207396415 U CN 207396415U CN 201720997716 U CN201720997716 U CN 201720997716U CN 207396415 U CN207396415 U CN 207396415U
- Authority
- CN
- China
- Prior art keywords
- voc
- module
- enrichment
- harvesters
- cold head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
VOC harvesters and VOC analytical equipments provided by the utility model, VOC harvesters include：Main body has vacuum chamber；Dehumidification module, to dehumidify to VOC；Enrichment module is arranged on inside the vacuum chamber, and the enrichment module makes VOC be enriched in the enrichment module to receive by the processed VOC of the dehumidification module and carry out low-temperature treatment；Module is desorbed, acts in the enrichment module, to be heated to the VOC in the enrichment module, desorbs the VOC.VOC harvesters provided by the utility model carry out cooling enrichment by enrichment module to VOC, and the concentration for flowing through VOC inside enrichment module is improved.After the completion of acquisition, by desorbing module by powdered VOC heating in gaseous state, it is then out.By the harvester of the utility model, VOC enrichments and VCO desorptions module are integrated, integrated level is higher, while the small volume occupied.
Description
Technical field
The utility model is related to volatile organic compounds technical fields, and in particular to a kind of volatile organic compounds
Trap setting.
Background technology
VOC is the english abbreviation of volatile organic compounds (volatile organic compounds).Common meaning
On VOC be exactly to refer to volatile organic matter；But the definition on environment protection significance refers to active a kind of volatile organic matter, i.e., can
Generate that a kind of volatile organic matter of harm.
, it is necessary to be monitored in real time to the concentration of pollutant during pollutant monitoring, to determine in a certain given zone
Different types of pollutant is in intraday changes of contents in domain.For VOC, different types of VOC is aerial to be contained
Measure it is extremely low, using conventional technology it is difficult to accurately be monitored to the content of pollutant.
In the prior art, VOC is often utilized into negative pressure drainage to a certain specific region (such as adsorption chamber), then to the given zone
Domain is cooled down so that VOC is enriched with.VOC generally requires to be desorbed, desorption refers to after enrichment：It will take the form of a powder
VOC heated, VOC is made to become gas form.Then the VOC after desorption is passed through in relevant equipment and be detected.But
It is that can either not carry out the equipment that is enriched with and can be desorbed to VOC in the prior art.
Utility model content
Therefore, the technical problems to be solved in the utility model is to overcome and can not in the prior art
The defects of equipment that enough to VOC be enriched with and can be desorbed.
For this purpose, the utility model provides a kind of VOC harvesters, including：Main body has vacuum chamber；Dehumidification module is used
To dehumidify to VOC；Enrichment module is arranged on inside the vacuum chamber, and the enrichment module is receiving described in process
The processed VOC of dehumidification module simultaneously carries out low-temperature treatment, and VOC is made to be enriched in the enrichment module；Desorb module, effect
In the enrichment module, to be heated to the VOC in the enrichment module, desorb the VOC.
The enrichment module includes：Enrichment pipe, the VOC after dehumidifying is connected in one end of the enrichment pipe, by dehumidifying
VOC afterwards is cooled down and is enriched in the enrichment pipe；Thermal switch, the thermal switch are connected with low-temperature receiver, the enrichment
Pipe is connected on the thermal switch.
The thermal switch includes：Cold head is connected with the low-temperature receiver；Conducting piece is internally connected with the enrichment pipe；Institute
State between cold head and the conducting piece be equipped with heat carrier, the heat carrier have be in contact with the cold head and the conducting piece with
The first state that the cold head is made mutually to conduct heat with the conducting piece；And stopping contact making the cold head and the conducting piece
Stop the second state of heat transfer.
The cold head forms holding tank, the heat carrier with the position being in contact with the conducting piece of the conducting piece
So that the cold head and the conducting piece thermal communication in the embedded holding tank, and the heat carrier being capable of relatively described holding tank
It moves and rests at the different position in the holding tank.
The heat carrier includes at least two parts and is connected with each other and has the metal strip of different thermal conductivity factors, the metal strip
Extending direction it is consistent with the holding tank extending direction.
The metal strip includes being divided into the first portion being made of stainless steel and the second portion being made of copper.
The longitudinal cross-section of the holding tank is triangle.
The thermal switch further includes gearshift, and institute's displacement apparatus includes：Horizontal displacement device, to drive described lead
The movement of relatively described holding tank occurs for hot body：And vertical displacement device, the vertical displacement device is in short transverse
It is upper that the heat carrier is driven to make the cold head and conducting piece thermal communication or disconnection.
The dehumidification module is hollow stainless steel tube, and the stainless steel tube is looped around on the cold head, the stainless steel
Both ends expose the side wall of the main body.
The low-temperature receiver includes the first connector, is connected on the cold head；Second connector, the temperature of second connector
The problem of degree is less than first connector, to connect the dehumidification module.
The low-temperature receiver is hot sound refrigerating machine, including the pressure wave generator, radiator and regenerator being sequentially connected, described time
Hot device top connects first connector, and second connector is connected in the regenerator main body.
The desorption module is the stainless steel tube being coated on the enrichment pipe, and the stainless steel tube is connected with energization and leads
Line.
Vacuum pump is connected in the main body, to carry out vacuum pumping to the vacuum chamber.
The utility model provides a kind of VOC analytical equipments simultaneously, including：The VOC harvesters；And analyzer,
The analyzer is connected in the enrichment module, and the VOC by desorption is analyzed.
Technical solutions of the utility model have the following advantages that：
1. VOC harvesters provided by the utility model, including：Main body has vacuum chamber；Dehumidification module, to right
VOC dehumidifies；Enrichment module is arranged on inside the vacuum chamber, and the enrichment module is receiving by the dehumidifying
VOC that resume module is crossed simultaneously carries out low-temperature treatment, and VOC is made to be enriched in the enrichment module；Module is desorbed, is acted on
In the enrichment module, to be heated to the VOC in the enrichment module, desorb the VOC.
VOC harvesters provided by the utility model carry out cooling enrichment to VOC by enrichment module, will flow through enrichment
The concentration of the VOC of inside modules improves.After the completion of acquisition, by desorbing module by powdered VOC heating in gaseous state, Ran Houliu
Go out.By the harvester of the utility model, VOC enrichments and VCO desorptions module are integrated, integrated level is higher, simultaneously
The small volume of occupancy.
Meanwhile by setting vacuum chamber, it can prevent enrichment module and desorb between module and the air dielectric of main body
Generation heat exchange.Improve the cooling efficiency of enrichment module and the efficiency of heating surface of desorption module.
Due to and moisture need not be measured, the utility model be with the addition of dehumidification module to VOC carry out
Dehumidifying, prevents the moisture in VOC from entering in enrichment module, the pipeline that VOC is flowed through is blocked.
2. VOC harvesters provided by the utility model, the enrichment module include：Enrichment pipe, the one of the enrichment pipe
The VOC after dehumidifying is crossed in termination promoting menstruation, and the VOC after dehumidifying is cooled down and is enriched in the enrichment pipe；Thermal switch,
The thermal switch is connected with low-temperature receiver, and the enrichment pipe is connected on the thermal switch.
Contain in VOC there are many different components, each component tool, can by thermal switch there are one the temperature range of enrichment
Accurately to be controlled the cooling of enrichment pipe, when reaching certain section of specific temperature, during without being cooled down to enrichment pipe, it is only necessary to
Thermal switch is disconnected, just no longer carries out heat exchange between low-temperature receiver and enrichment pipe at this time.
3. VOC harvesters provided by the utility model, the thermal switch include：Cold head is connected with the low-temperature receiver；It passes
Guiding element is internally connected with the enrichment pipe；Heat carrier is equipped between the cold head and the conducting piece, the heat carrier has
It is in contact with the cold head and the conducting piece so that the first state that the cold head mutually conducts heat with the conducting piece；And
Stop the second state that contact makes the cold head stop heat transfer with the conducting piece.
Cold head is in steadily low-temperature condition, and when needing to carry out equipment cooling operation, heat carrier is by cold head with conducting
Part connects, and needs the heat in cooling system that will be flowed into along conducting piece in cold head at this time, and equipment is completed to cool down.Due to cold head
Temperature stabilization, therefore when entire diabatic process balances, it is necessary to the temperature of the equipment of cooling is consistent with the temperature of cold head, this
The type of cooling of sample may insure that the equipment cooled down is needed to finally drop within the scope of accurate temperature.
It is indirectly connected between cold head and conducting piece by heat carrier, when that need not cool down to the equipment on conducting piece,
It only needs to separate heat carrier between cold head and conducting piece.There is no any heat between cold head and conducting piece at this time to make
With maintaining the temperature independence needed inside the equipment that cools down.
4. VOC harvesters provided by the utility model, the cold head connect with the conducting piece with the conducting piece
Tactile position forms holding tank, and the heat carrier is embedded in the holding tank so that the cold head connects with conducting piece heat
It is logical, and the heat carrier can relatively described holding tank move and rest at the different position in the holding tank.
When heat carrier is placed on the different position of holding tank, the zone of action between cold head and conducting piece is inconsistent, works as needs
During fast cooling, then heat carrier is put into holding tank completely；When needing slow cooling, then heat carrier is adjusted in holding tank
Position makes heat carrier be partially disposed in holding tank.Heat carrier is similar " thermal resistance " at this time, effectively adjusts heat transfer rate.
5. VOC harvesters provided by the utility model, the metal strip includes being divided into first be made of stainless steel
The second portion for dividing and being made of copper.
Stainless steel mainly has iron composition, and iron is different from the conductive capability of copper, and resistance therebetween is also inconsistent.The two is put down
Row arrangement forms the relation of series connection.It forms " thermal resistance ".
6. VOC harvesters provided by the utility model, the thermal switch further includes gearshift, institute's displacement apparatus bag
It includes：Horizontal displacement device, to drive the heat carrier that the movement of relatively described holding tank occurs：And vertical displacement device,
The vertical displacement device driving the heat carrier to make the cold head and conducting piece thermal communication or disconnection in the height direction.
By horizontal displacement device, the size of " thermal resistance " resistance value can be adjusted, and then adjusts heat transfer rate.Pass through vertical position
Moving device can drive heat carrier in vertical direction, make to thermally contact or disconnect between cold head and conducting piece, easy to operate.
7. VOC analytical equipments provided by the utility model, including mass spectrograph and VOC harvesters, by VOC harvesters
Substance after being enriched with and desorbing, which is directly entered in mass spectrograph, to be measured, and is simple and efficient quick.
8. VOC analytical equipments provided by the utility model, the longitudinal cross-section of the holding tank is triangle.Same high
Under the conditions of degree, the contact area of vee gutter and heat carrier is greater than the contact area of rectangular channel and heat carrier, vee gutter
Rate of heat transfer is faster.
9. VOC analytical equipments provided by the utility model, the low-temperature receiver includes the first connector, is connected to the cold head
On；The problem of second connector, the temperature of second connector is less than first connector, to connect the dehumidifying mould
Block.
The required temperature of dehumidification module is higher than the required temperature of cold head, by setting two simultaneously on a low-temperature receiver
The connector of a different temperatures, compared to two low-temperature receivers are separately provided, the setting of a low-temperature receiver can carry out efficiently cold
It utilizes, reduces the use cost of device, while the volume of whole device occupancy can be reduced.
10. VOC analytical equipments provided by the utility model, the heat carrier includes at least two parts and is connected with each other and has
The metal strip of different thermal conductivity factors, the extending direction of the metal strip is consistent with the holding tank extending direction, the heat carrier
First portion including being made of stainless steel and the second portion made of copper material.
Heat carrier is made up of the various material of different thermal conductivity factors, and the capacity of heat transmission of the metal of unlike material is different and locates
In " series connection " state, similar to the series connection between the resistance of multiple and different resistance values in electricity.And then adjust entire heat carrier
Heat-transfer capability.In diabatic process, can Stainless Steel material be individually embedded in holding tank, copper material can also be embedded in holding tank,
Can also will have in the embedded holding tank of the entirety that stainless steel and copper material are formed, by the selection to material, can active control
Heat transfer rate, flexibility are higher.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it describes below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is the structure diagram of the VOC harvesters provided in the utility model embodiment 1；
Fig. 2 is the structure diagram of the VOC harvesters provided in the utility model embodiment 2；
Fig. 3 is a kind of schematic diagram of embodiment of the thermal switch provided in the utility model embodiment 1；
Fig. 4 is the schematic diagram of the another embodiment of the thermal switch provided in the utility model embodiment 1；
Fig. 5 is a kind of schematic diagram of embodiment of the VOC analytical equipments provided in the utility model embodiment 4；
Fig. 6 is the signal of the another embodiment of the VOC analytical equipments provided in the utility model embodiment 4
Figure；
Fig. 7 is the structure diagram of the low-temperature receiver provided by the utility model.
Reference sign：
1- cold heads；2- conducting pieces；3- heat carriers；4- holding tanks；5- low-temperature receivers；The first connectors of 51-；52- second is connected
Head；53- pressure wave generators；54- radiators；55- regenerators；A- stainless steels；B- copper materials；6- main bodys；7- dehumidification modules；8-
Enrichment module；81- enrichment pipes；82- thermal switch；9- desorbs module；10- analyzers；11-VOC.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected scope.
, it is necessary to explanation in the description of the utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
The utility model must have specific with the device or element for simplifying description rather than instruction or hint meaning for ease of description
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for description purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition
Concrete meaning of the language in the utility model.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not forming conflict can be combined with each other.
Embodiment 1
The present embodiment provides a kind of VOC harvesters, including：Main body 6 has vacuum chamber；Dehumidification module 7, to right
VOC11 dehumidifies；Enrichment module 8 is arranged on inside the vacuum chamber, and the enrichment module 8 is receiving described in process
7 processed VOC of dehumidification module simultaneously carries out low-temperature treatment, and VOC is made to be enriched in the enrichment module 8；Module 9 is desorbed,
It acts in the enrichment module 8, to be heated to the VOC in the enrichment module 8, desorbs the VOC.
VOC harvesters provided in this embodiment carry out cooling enrichment to VOC by enrichment module 8, will flow through enrichment mode
The concentration of VOC inside block 8 improves.It is in gaseous state by desorbing module 9 by powdered VOC heating, then after the completion of acquisition
Outflow.By the harvester of the utility model, VOC enrichments and VCO desorptions module 9 are integrated, integrated level is higher,
The small volume occupied simultaneously.
In the present embodiment, by setting vacuum chamber, it can prevent enrichment module 8 and desorb the sky of module 9 and main body 6
Heat exchange occurs between gas medium.Improve the cooling efficiency of enrichment module 8 and the efficiency of heating surface of desorption module 9.It is for this purpose, described
Vacuum pump is connected in main body 6, to carry out vacuum pumping to the vacuum chamber.
In the present embodiment, due to and moisture need not be measured, the utility model is with the addition of dehumidifying mould
Block 7 dehumidifies to VOC, prevents the moisture in VOC from entering in enrichment module 8, and the pipeline that VOC is flowed through is blocked.
In the present embodiment, the dehumidification module 7 is hollow stainless steel tube, and the stainless steel tube is looped around the cold head 1
On, the side wall of the main body is exposed at the both ends of the stainless steel.VOC gases to be dehumidified are flowed into from one end of stainless steel tube and led
Internal portion, since stainless steel tube is connected on cold head 1, own temperature is relatively low, therefore after gas stream, the moisture in gas coagulates
Knot is on the inner wall of stainless steel tube.As modification, the metal tube of other materials may be employed in the dehumidification module 7, as long as can
Reach effect on moisture extraction.
In the present embodiment, the dehumidification module 7 is integrated in inside main body 6, as modification, as shown in Fig. 2, the dehumidifying
Module 7 can also be arranged on outside main body 6, after individually dehumidifying to VOC, will connect enrichment module 8.Wherein, dehumidify mould
Block 7 can make other dehumidification equipments.
In the present embodiment, the enrichment module 8 includes：Enrichment pipe 81, one end of the enrichment pipe 81 are connected by dehumidifying
VOC afterwards, the VOC after dehumidifying are cooled down and are enriched in the enrichment pipe 81；Thermal switch 82, the thermal switch
82 are connected with low-temperature receiver 5, and the enrichment pipe 81 is connected on the thermal switch 82.
Contain in VOC there are many different components, each component tool there are one enrichment temperature range, by thermal switch 82,
The cooling of enrichment pipe 81 can accurately be controlled, when reaching certain section of specific temperature, during without being cooled down to enrichment pipe 81,
It only needs to disconnect thermal switch 82, just no longer carries out heat exchange between low-temperature receiver 5 and enrichment pipe 81 at this time.
In the present embodiment, the enrichment pipe 81 can be capillary or quartz ampoule or other pipes.Specifically,
The both ends of enrichment pipe 81 are connected in main body 6, into the VOC in enrichment pipe 81 on the enrichment pipe 81 in main body 6
It is enriched with.
In the present embodiment, the enrichment module 8 can be cooled to less than -150 DEG C, and the desorption module can be warming up to
150℃。
In the present embodiment, the thermal switch 82 includes：Cold head 1 is connected with the low-temperature receiver 5；Conducting piece 2, inside connect
It is connected to the enrichment pipe 81；Between the cold head 1 and the conducting piece 2 be equipped with heat carrier 3, the heat carrier 3 have with it is described
Cold head 1 and the conducting piece 2 are in contact so that the first state that the cold head 1 mutually conducts heat with the conducting piece 2；And stop
Only contact makes the cold head 1 stop the second state conducted heat with the conducting piece 2.And gearshift, institute's displacement apparatus bag
It includes：Horizontal displacement device, to drive the heat carrier 3 that the movement of relatively described holding tank 4 occurs：And vertical displacement dress
It puts, the vertical displacement device driving the heat carrier 3 to make 2 thermal communication of the cold head 1 and conducting piece in the height direction
Or it disconnects.
Cold head 1 is in steadily low-temperature condition, when needing to carry out equipment cooling operation, heat carrier 3 by cold head 1 with
Conducting piece 2 connects, and needs the heat in cooling system that will be flowed into along conducting piece 2 in cold head 1 at this time, and equipment is completed to cool down.
Due to the temperature stabilization of cold head 1, when entire diabatic process balances, it is necessary to the temperature of equipment and the temperature of cold head 1 of cooling
Spend consistent, such type of cooling may insure that the equipment that cools down is needed to finally drop within the scope of accurate temperature.
It is indirectly connected between cold head 1 and conducting piece 2 by heat carrier 3, when without cooling down to the equipment on conducting piece 2
When, it is only necessary to heat carrier 3 is separated between cold head 1 and conducting piece 2.There is no appoint between cold head 1 and conducting piece 2 at this time
What heat effect maintains the temperature independence inside the equipment for needing to cool down.In the present embodiment, the cold head 1, conducting piece 2 with
The heat carrier 3 is formed using metal material.
Specifically, as shown in figure 3, the cold head 1 and the conducting piece 2 and the position that the conducting piece 2 is in contact into
Type has a holding tank 4, and the heat carrier 3 is embedded in the holding tank 4 so that the cold head 1 and 2 thermal communication of conducting piece, and institute
State heat carrier 3 can relatively described holding tank 4 move and rest at the different position in the holding tank 4.Heat carrier 3 is placed on
During the different position of holding tank 4, the zone of action between cold head 1 and conducting piece 2 is inconsistent, when needing fast cooling, then will
Heat carrier 3 is put into completely in holding tank 4；When needing slow cooling, then the position in holding tank 4 of heat carrier 3 is adjusted, makes to lead
Hot body 3 is partially disposed in holding tank 4.Heat carrier 3 is similar " thermal resistance " at this time, effectively adjusts heat transfer rate.Pass through horizontal displacement
Device can adjust the size of " thermal resistance " resistance value, and then adjust heat transfer rate.It, can be in vertical side by vertical displacement device
To heat carrier 3 is driven, make to thermally contact or disconnect between cold head 1 and conducting piece 2, it is easy to operate.
In the present embodiment, the heat carrier includes at least two parts and is connected with each other and has the metal of different thermal conductivity factors
Item, the extending direction of the metal strip are consistent with 4 extending direction of holding tank.Stainless steel mainly has an iron composition, iron and copper
Conductive capability is different, and resistance therebetween is also inconsistent.The two is arranged in parallel, forms the relation of series connection.It forms " thermal resistance ".
In the present embodiment, the longitudinal cross-section of the holding tank is triangle.Under the conditions of same height, vee gutter with
The contact area of heat carrier is greater than the contact area of rectangular channel and heat carrier, and the rate of heat transfer of vee gutter is faster.
As modification, the longitudinal cross-section of the holding tank can be other shapes, such as taper.
In the present embodiment, as shown in figure 4, the metal strip include be divided by the stainless steel a first portions formed and by
The second portion that copper b is formed, joins end to end therebetween.Specifically, by changing the material of metal strip, thus it is possible to vary metal strip
Resistance value, and then change heat carrier 3 heat transfer rate.
It is described to desorb module 9 to be coated on the stainless steel tube on the enrichment pipe 81, the stainless steel tube in the present embodiment
It is connected with electrified wire.
When needing to desorb enriched VOC, stainless steel tube is powered, stainless steel has big resistance,
After stainless steel tube fever, temperature can be risen to 150 DEG C in 10-20 seconds, VOC is driven to gasify, discharges VOC.
As modification, other materials, such as noble metal pipe may be employed in the desorption module 9, adds as long as can play
Thermal effect.
In the present embodiment, as shown in fig. 7, the low-temperature receiver includes the first connector, it is connected on the cold head；Second connection
The problem of head, the temperature of second connector is less than first connector, to connect the dehumidification module.
The required temperature of dehumidification module is higher than the required temperature of cold head, by setting two simultaneously on a low-temperature receiver
The connector of a different temperatures, compared to two low-temperature receivers are separately provided, the setting of a low-temperature receiver can carry out efficiently cold
It utilizes, reduces the use cost of device, while the volume of whole device occupancy can be reduced.
Specifically, the low-temperature receiver is hot sound refrigerating machine, including the pressure wave generator, radiator and backheat being sequentially connected
Device, the regenerator top connect first connector, second connector are connected in the regenerator main body.Along separate
The direction of first connector 51, the temperature of the regenerator gradually rise, and in a linear relationship between temperature and position, can
With temperature as needed, position of the second connector 52 of adjustment on regenerator 55.
Embodiment 2
The present embodiment is made on the basis of embodiment 1, in the present embodiment, the enrichment module 8 and the desorption
Module 9 merges into same module, specifically, metal tube is coated on the side wall of the enrichment pipe 81, when being enriched with,
Sub-cooled is carried out to metal tube, waits after being enriched with, metal tube is heated, realize the desorption of VOC.It is rich in this implementation
Collection module 8 is integrated with desorption module 9, is conducive to miniaturization and the portability of device.
Embodiment 3
It is made on the basis of the tangible Examples 1 and 2 of the present embodiment, in the present embodiment, the enrichment module 8 can not wrap
Containing thermal switch 82, the enrichment pipe 81 is directly attached with low-temperature receiver 5, when needing to cool down enrichment pipe 81, is started cold
Source 5；When needing to terminate the cooling to enrichment pipe 81, low-temperature receiver 5 is closed.
Embodiment 4
The present embodiment is made on the basis of embodiment 1-3, specifically provides a kind of VOC analytical equipments, including：Implement
The VOC harvesters provided in example 1-3；And analyzer 10, the analyzer 10 are connected in the enrichment module 8, to warp
The VOC for crossing desorption is analyzed.
In the present embodiment, the mass spectrograph can be mass spectrograph, chromatograph or other with detecting relevant equipment.Specifically
Ground, one end of the enrichment pipe 81 are connected on the analyzer 10, and the VOC after being desorbed from enrichment pipe 81 is directly entered analysis
In instrument 10.
Specifically, VOC11 first flows through dehumidification module 7 and is dried, subsequently into enrichment pipe 81, by enrichment module 8
Cooling enrichment is carried out, then by desorption module desorption, finally enters in analyzer 10, completes the detection to ingredient in VOC.
Obviously, the above embodiments are merely examples for clarifying the description, and is not intended to limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And the obvious variation thus extended out or
Among the protection domain that variation is created still in the utility model.
Claims (14)
1. a kind of VOC harvesters, which is characterized in that including：
Main body (6) has vacuum chamber；
Dehumidification module (7), to dehumidify to VOC (11)；
Enrichment module is arranged on inside the vacuum chamber, and the enrichment module is receiving by the dehumidification module (7)
The VOC that managed simultaneously carries out low-temperature treatment, and VOC is made to be enriched in the enrichment module；
Module (9) is desorbed, is acted in the enrichment module, to be heated to the VOC in the enrichment module, is made described
VOC is desorbed.
2. VOC harvesters according to claim 1, which is characterized in that the enrichment module includes：
The VOC after dehumidifying is connected in enrichment pipe, one end of the enrichment pipe, and the VOC after dehumidifying is in the enrichment pipe
It is cooled down and is enriched with；
Thermal switch, the thermal switch are connected with low-temperature receiver (5), and the enrichment pipe is connected on the thermal switch.
3. VOC harvesters according to claim 2, which is characterized in that the thermal switch includes：
Cold head (1) is connected with the low-temperature receiver (5)；
Conducting piece (2), is internally connected with the enrichment pipe；
Heat carrier (3) is equipped between the cold head (1) and the conducting piece (2), the heat carrier (3) has and the cold head
(1) and the conducting piece (2) is in contact so that the first state that the cold head (1) mutually conducts heat with the conducting piece (2)；With
And stop the second state that contact makes the cold head (1) stop heat transfer with the conducting piece (2).
4. VOC harvesters according to claim 3, which is characterized in that the cold head (1) and the conducting piece (2)
The position being in contact with the conducting piece (2) forms holding tank (4), in the embedded holding tank (4) of the heat carrier (3) with
Make the cold head (1) and the conducting piece (2) thermal communication, and the heat carrier (3) can relatively described holding tank (4) movement simultaneously
It rests at the different position in the holding tank (4).
5. VOC harvesters according to claim 4, which is characterized in that the heat carrier (3) includes at least two parts phase
It connects and the metal strip with different thermal conductivity factors, the extending direction of the metal strip and the holding tank (4) extending direction
Unanimously.
6. VOC harvesters according to claim 5, which is characterized in that the metal strip includes being divided by stainless steel structure
Into first portion and the second portion that is made of copper.
7. according to any VOC harvesters of claim 4-6, which is characterized in that the longitudinal cross-section of the holding tank (4)
For triangle.
8. according to any VOC harvesters of claim 4-6, which is characterized in that the thermal switch further includes displacement dress
It puts, institute's displacement apparatus includes：
Horizontal displacement device, to drive the heat carrier (3) that the movement of relatively described holding tank (4) occurs：And
Vertical displacement device, the vertical displacement device driving the heat carrier (3) to make the cold head in the height direction
(1) and conducting piece (2) thermal communication or disconnection.
9. VOC harvesters according to claim 8, which is characterized in that the dehumidification module (7) is hollow stainless steel
Pipe, the stainless steel tube are looped around on the cold head (1), and the side wall of main body is exposed at the both ends of the stainless steel.
10. according to claim 3-6,9 any VOC harvesters, which is characterized in that the low-temperature receiver (5) includes
First connector is connected on the cold head (1)；
The problem of second connector, the temperature of second connector is less than first connector, to connect the dehumidifying
Module (7).
11. VOC harvesters according to claim 10, which is characterized in that the low-temperature receiver (5) is hot sound refrigerating machine, is wrapped
The pressure wave generator (53) being sequentially connected, radiator (54) and regenerator (55) are included, regenerator (55) top connects institute
The first connector (51) is stated, second connector (52) is connected in the regenerator main body.
12. according to claim 2-6,9,11 any VOC harvesters, which is characterized in that the desorption module (9) is
The stainless steel tube being coated on the enrichment pipe, the stainless steel tube are connected with electrified wire.
13. VOC harvesters according to claim 12, which is characterized in that vacuum pump is connected on the main body (6),
To carry out vacuum pumping to the vacuum chamber.
14. a kind of VOC analytical equipments, which is characterized in that including：
Any VOC harvesters of claim 1-13；
And
Analyzer (10), the analyzer (10) are connected in the enrichment module, and the VOC by desorption is analyzed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720997716.2U CN207396415U (en) | 2017-08-10 | 2017-08-10 | A kind of VOC harvesters and VOC analytical equipments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720997716.2U CN207396415U (en) | 2017-08-10 | 2017-08-10 | A kind of VOC harvesters and VOC analytical equipments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207396415U true CN207396415U (en) | 2018-05-22 |
Family
ID=62418994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720997716.2U Active CN207396415U (en) | 2017-08-10 | 2017-08-10 | A kind of VOC harvesters and VOC analytical equipments |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207396415U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108592462A (en) * | 2018-05-31 | 2018-09-28 | 山前（珠海）科技有限公司 | A kind of energy distribution system and ultralow temperature condense enrichment system |
| CN108592461A (en) * | 2018-05-31 | 2018-09-28 | 山前（珠海）科技有限公司 | A kind of ultralow temperature condensation enrichment system |
-
2017
- 2017-08-10 CN CN201720997716.2U patent/CN207396415U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108592462A (en) * | 2018-05-31 | 2018-09-28 | 山前（珠海）科技有限公司 | A kind of energy distribution system and ultralow temperature condense enrichment system |
| CN108592461A (en) * | 2018-05-31 | 2018-09-28 | 山前（珠海）科技有限公司 | A kind of ultralow temperature condensation enrichment system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103499662B (en) | Sampling analysis device and sampling analysis method for atmosphere volatile organic compounds | |
| CN101609074B (en) | Refrigeration-type purge and trap instrument being applicable to nitric oxide | |
| CN207396415U (en) | A kind of VOC harvesters and VOC analytical equipments | |
| CN103439153B (en) | Atmosphere volatile organic compound condensation and concentration sampling device and method | |
| CN103353409B (en) | Possesses the atmospheric sampling equipment of temperature adjusting function | |
| CN202141627U (en) | Low-temperature carrier gas cold-trapping and thermal-desorption device | |
| CN105043846A (en) | Volatile organic compound sample gas trapping system and method | |
| JP6469312B2 (en) | Pretreatment apparatus and method for air pollution measurement analysis | |
| CN208504804U (en) | A kind of ultralow temperature condensation enrichment system | |
| CN102539474B (en) | Device and method for testing adsorption performance of wholly shaped solar refrigerating adsorbent | |
| CN109387572A (en) | A kind of VOC acquisition device and VOC analytical equipment | |
| KR100355595B1 (en) | sample gas injection apparatus for chromatography | |
| CN108592461A (en) | A kind of ultralow temperature condensation enrichment system | |
| CN219399540U (en) | Adsorption component, high-low temperature component and pretreatment device | |
| CN208283158U (en) | A kind of condensation-heating pipe-line system and ultralow temperature condense enrichment system | |
| CN205786045U (en) | A kind of volatile organic matter sample gas trapping system | |
| CN104848446A (en) | Humidifying device and air conditioner applying same | |
| JP5184171B2 (en) | Sample gas collector and gas chromatograph | |
| CN207635649U (en) | Semiconductor cooling device | |
| CN112730640B (en) | Portable gas chromatographic analysis device and analysis method | |
| CN202066735U (en) | Automatic translation and lifting type trapping and desorbing device | |
| CN108120045A (en) | Semiconductor cooling device | |
| CN210465359U (en) | Universal device for removing moisture in air | |
| CN203337424U (en) | Atmospheric sampling equipment with temperature adjusting and controlling function | |
| CN105181431A (en) | Volatile organic compound gas trapping apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |